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Data.

This dataset was collected by Citizen Scientists at an official 'Survey Area' as part of the Litter Intelligence long-term litter monitoring programme. The data are freely and openly accessible to anyone. Download the raw data, share this survey, and learn more about the data collection methodology through the links at the bottom of the page.

Litter Survey

beach-icon Beach.

Porirua Harbour - Porirua Stream Estuary

28 February 2023

Porirua City Council

Nigel Clarke

Overview

C

11

8.3

16.3

50m x 10m

Mixed Substrate

Items per 1,000m2

2614

Products

1307

10229

Type Count Weight (g)
Plastic 919 5152
Resin pellets A N/A
Food wrappers 217 868
Bottle neck rings 7 8
Cigarette lighters 3 95
Strapping bands & tape 83 103
Food containers 23 252
Mesh bags 1 11
Unidentifiable hard plastic fragments 213 1204
Gardening & farming related 1 12
Bottle caps & lids 61 167
Gloves 8 300
Bottles <= 2 L 20 944
Lollipop sticks 5 3
Plastic utensils 37 82
Clothes pegs 21 51
Pens & Stationery 15 52
Baskets, crates & trays 1 33
Toys, sport, & recreation (Plastic) 24 149
Cable ties & zip ties 103 151
Plastic sheeting 53 117
Bottles, drums, jerrycans & buckets > 2 L 8 436
Safety & construction related 4 67
Straws 10 15
Plastic vehicle parts 1 32
Foamed Plastic 184 92
Foam glazier spacers 20 7
Unidentifiable foamed plastic fragments 5 5
Toys, Sports & Recreation (Foamed Plastic) 14 31
Other Foamed Plastic 4 3
Polystyrene insulation or packaging 141 46
Metal 99 1046
Aluminium drink cans 10 737
Other cans (<= 4 L) 1 110
Foil wrappers 88 199
Fabric & Textiles 40 1050
Rope, line or string (natural) 6 7
Other cloth 3 45
Footwear & shoes 3 714
Clothing, towels and linen 28 284
Rubber 23 1441
Construction & Automotive 13 964
Toys, Sports & Recreation (Rubber) 3 263
Rubber bands 6 2
Rubber footwear 1 212
Other 22 59
Personal care items 10 59
Sanitary items 12 N/A
Glass & Ceramic 10 868
Bottles & jars 10 868
Paper & Cardboard 6 30
Paper, newspapers & paper receipts 5 11
Cups, food trays & wrappers 1 19
Wood 4 491
Processed timber & pallet crates 4 491

Materials

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  • If you would like to learn how this data was collected. Our Methodology

Previous survey in this area

Porirua Harbour - Porirua Stream Estuary Kids Enhancing Tawa Ecosystems (KETE)
28 Oct, 2022
Items per 1,000m2
3430
90%

Next survey in this area

Porirua Harbour - Porirua Stream Estuary Porirua City Council
23 Aug, 2023
Items per 1,000m2
2524
92%